“…Typical materials used for mitigating EM transmission including sheet metals, metal screens, and metal foams, cannot simultaneously integrate these intriguing characteristics due to opacity, high density, and inflexibility [ 8 , 9 , 10 ]. Recently, MXene are under the spotlight on account of their good electrical conductivity, light weight, extremely large specific surface areas, excellent hydrophilicity, and easy processability for efficient EMI shielding materials [ 11 , 12 , 13 , 14 , 15 ]. In addition, the Ti-F and Ti-OH bonds on the surface of the Ti 3 C 2 T x nanosheets could be used as functional groups to reduce some metal ions, such as platinum ion, silver ions and gold ions, into corresponding metallic nanoparticles [ 16 , 17 , 18 , 19 ].…”